Nirsevimab Effectiveness Against RSV-Related Hospitalisations in Children Under 24 Months: A Test-Negative Case-Control Study in Portugal, 2024-2025. - Gaio V; Henriques C; Lança M; Marques R; Rodrigues M; Almeida S; Sousa B; Freitas M; Amaral D; Ferreira S; Azevedo I; von Hafe M; et al. (Influenza and other respiratory viruses, 2025)